听力V34原文参考

文章作者 100test 发表时间 2007:04:03 10:07:12
来源 100Test.Com百考试题网

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我虽然考试感觉很不好，但我还是很感谢100test的朋友们和老师提供的机经。下面，我打出两篇文章。是听力原文 算是对机经的一点帮助吧。。。

V34 一个教授讲猎鹰的情况

The peregrine falcon is a majestic bird of majestic bird of prey ,with slate blue upper part and cream –coloured under part .its under part is distinguished by horizontal black barring and spotting the peregrine’s elegant head pattern makes this species very distinctive ,even from distance male peregrines weigh an average of 611 grams and females 952 grams .The peregrine falcon once bred throughout Canada .however ,its range has become much more restricted in recent years as populations have undergone declines .north American peregrines from the northern united state s,southwestern british Columbia,and southern Ontario winter in such places as –the coast of the Gulf of mexico ,Latin America&.south America .

There are three subspecies of the peregrine falcon in Canada .The arctic peregrine falcon occurs across the wide arc of tundra from the Mackenzie Delta to Hudson Bay and Ungava ,and north to baffin Baffin island this subspecies is listed as vulnerable .The pealie peregrine falcon is non-migratory , and inhabit the Queen Charlotte Island as vulnerable within canda most of the southern candian breeding populations are of the anatum subspecies ,which is a Canadian endangered species.

Peregrines are powerful ,streamlined birds ,flying at speeds of more than 200km/h Peregrine f are expert hunters feeding on songbirds shore birds waterfowl ,sea birds and pigeons ,all of which are caught in flight .The peregrine is anatomically specialized for hunting by a direct blow of the closed fist .

IN addition to speed ,the peregrine may use the element of surprise –swooping from the direction of the sun or suddenly appearing from behind a cliff ,or around the corner of one of our sky scrapers .

Pairs are sometimes copperative when hunting during the breeding season .peregrines ,and particularly the arctic peregrines occasionally prey on small mammals such as lemmings .on the wintering grounds ,peregrines predominantly.prey on migratory shore birds

In the breeding season ,falcons nest on a cliff ledge ,cliff top ,a ledge or top of the tallest building is also preferred, preying on pigeons in nearby parks. Occasionally peregrines may nest on the ground Females lay two to five eggs in the “scrape”or nesting site ,which is usually just a shallow depression .eggs are incubated for 32days ,mainly by the female ,while the male hunts for food. Young may stay. together for a short time after they become independent of the adults .peregrines rarely breed before three years of age the average life span is the adults Peregrines rarely breed before 3 years of age .the average life span is four to five years but some individuals have been known to live much longer .